I am wondering if anyone has had success with the following tasks....

Creating a group called Bloggers and having new users automatically assigned to that group upon joining the site.
Having blog ages automatically created for new users as they join the site to where they can have their own blog. (I am looking for Wordpress.com functionality)
Having the users have ability to assign if a post they write wants to be public or private in which the public post would show up for others to read on that users blog...or the private would only be for the users friends to be able to read.
With that said, I would need add friend capabilities as well.

Thanks